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Giant magneto-impedance and low-frequency magneto-resistance effect in NiFeB coated composite wires

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Chinese Science Bulletin 2004年第10期49卷 1002-1005页

作者： YUAN Wangzhi WANG Xinzheng ZHAO Zhenjie RUAN Jianzhong LI Xiaodong YANG Xielong department of physics, East{2. normal University, Shanghai 2.0062.china Correspondence should be addressed to Zhao Zhenjie department of physics East China Normal University Shanghai 200062 China

Composite wires of 100 μm insulated CuBewire plated with a layer of NiFeB were produced by elec-troless-deposition, and their magnetic properties were stud-led. The results showed that a good magneto-impedance (MI)effect can be obtained at relatively low frequency. The largestMI ratio (△Z/Z)max obtained is 2.0% at 500 kHz. Mag-neto-resistance effect was also observed at low frequency,with the (△R/R)max observed to be -8.5% at 540 Hz and 38.7% at 10 kHz. Results are discussed, and the equivalent resistance and inductance as the result of the NiFeB layer are taken into account.

关键词：巨磁阻抗无电沉积涡流电流损耗合成导线低频电机电阻

Investigations into quantum correlation of coupled qubits in a squeezed vacuum reservoir

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Chinese physics B 2013年第2期22卷 86-91页

作者：嵇英华刘咏梅 department of physics Jiangxi Normal University Key Laboratory of Photoelectronics and Telecommunication of Jiangxi Province College of Mathematics and Information Science Jiangxi Normal University

In this paper,we investigate the quantum correlation of coupled qubits which are initially in maximally entangled mixed states in a squeezed vacuum *** compare and analyze the effects of squeezed parameters on quantum discord and quantum *** results show that in a squeezed vacuum reservoir,the quantum discord and quantum concurrence perform with completely opposite behaviors with the change of squeezed *** discord survives longer with the increase of squeezed amplitude parameter,but entanglement death is faster on the *** results also indicate that the classical correlation of the system is smaller than quantum discord in a vacuum reservoir,while it is bigger than quantum discord in a squeezed vacuum *** quantum discord and classical correlation are more robust than quantum concurrence in the two reservoir environments,which indicates that the entanglement actually is easily affected by decoherence and quantum discord has a stronger ability to avoid decoherence in a squeezed vacuum reservoir.

关键词： quantum correlation coupled qubits quantum discord concurrence

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理想条件下氡及其子体垂直运移实验数据分析

物理学报 2008年第9期57卷 5452-5457页

作者：谭延亮肖德涛赵桂芝南华大学核科学技术学院

对氡及其子体的长距离运移实验数据进行了分析,发现利用氦氡团簇解释氡的快速向上运移,α粒子的数量远远不够.如果假定氡有很强的从空气中吸附氦气的能力,从而获取足够的氦组成氦氡团簇垂直运移,则又与相关实验中加有氦气后氡及其子体... 详细信息

对氡及其子体的长距离运移实验数据进行了分析,发现利用氦氡团簇解释氡的快速向上运移,α粒子的数量远远不够.如果假定氡有很强的从空气中吸附氦气的能力,从而获取足够的氦组成氦氡团簇垂直运移,则又与相关实验中加有氦气后氡及其子体向上、向下运移概率与自然状态相同的结论矛盾.提出氦氡团簇可能不是氡具有快速向上运移能力的主要原因,氡的快速向上运移能力可能另有更深层次的原因,有待进一步深入研究.

关键词：氡垂直运移氦氡团簇

EFFECT OF VANADIUM DOPING ON SUPERCONDUCTIVITY AND GLASS FORMING ABILITY OF Bi BASED SUPERCONDUCTORS

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Acta Metallurgica Sinica(English Letters) 1999年第4期12卷 485-487页

作者： Y. Zhuo1) , M. Gao1 ,2.and J.Y. Chen1,3) 1) department of physics,Shenyang {2. College,Shenyang 110031 ,china2. Institute of Metal Research , The Chinese Academy ofsciences,Shenyang 110015 ,china 3) International Centerfor Materials physics,CAS,Sheny

BiVxSrCaCu2.Oysystem glasses were prepared by using doubleroller quenching method. Thedifferentialthermal analysis was employed to investigate the effect of V doping on glass forming ability( GFA). Theresultsshowedthatthe GFAof Bisystem increases withthein creasing ofthe amountof Vdoping. Thebestatomic ratiofor having both superconductivityandthegreatest GFAwas BiV0 18 CaCu2.Oy .

关键词： analysis Bisystem glass Bi based high TCsuperconductors differentialthermal

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分子离子光谱强度与母体分子气体压强的关系

物理学报 2004年第2期53卷 418-422页

作者：龚天林杨晓华李红兵韩良恺陈扬骎华东师范大学物理系光谱学与波谱学教育部重点实验室上海200062 南通师范学院物理系南通226007

实验研究并理论分析了速度调制光谱技术中分子离子谱线的强度与母体分子气体压强的关系 ,提出并实现了一种新的等离子体电场、电子温度、电离系数的诊断方法 .

关键词：速度调制等离子体诊断速度调制光谱技术分子离子光谱强度分子气体压强电子温度电离系数光谱测量

The crystallization and noncrystallization in the diffusion process of Ag ultrafine particles

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西南师范大学学报(自然科学版) 1999年第5期24卷 545-550页

作者： Deng Zhaojing,Zhao Nanrong,Liu Cunye,Li\ Jian department of physics,Southwest{2. normal University,Chongqing 400715 西南师范大学物理系重庆

In the diffusion process of Ag ultrafine particles,considerable contents are formed by the spontaneous diffusion evolution process,such as the size distribution evolution,the chemical composition distribution evolution,the crystallization and the non ***,the discussion will be concentrated on the crystallization of the Ag UFP and the non crystallization of the (Ag\-2./Ag) UFP.

关键词： Ag ultrafine particles diffusion process crystallization non crystalliztion

Mssbauer study of function of magnesium in iron oxide catalysts

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Nuclear Science and Techniques 1997年第4期 33-36页

作者： Yang Jie Xin 1, Jiang Ke Yu 1, Hu Bing Yuan 1, Yang Xie Long 1 Mao Lian Sheng 2. Yuan Yi Ting 2.and Zhang Gui Lin 3 1 department of physics, East{2. normal University, Shanghai 2.0062.2.Shanghai Research Institute of Petrochem

Ｍ¨ｏｓｂａｕｅｒｓｔｕｄｙｏｆｆｕｎｃｔｉｏｎｏｆｍａｇｎｅｓｉｕｍｉｎｉｒｏｎｏｘｉｄｅｃａｔａｌｙｓｔｓＴｈｅＰｒｏｊｅｃｔＳｕｐｐｏｒｔｅｄｂｙＮａｔｉｏｎａｌＣｌｉｍｂｉｎｇＰｌａｎＭａｎｕｓｃｒｉｐｔ... 详细信息

Ｍ¨ｏｓｂａｕｅｒｓｔｕｄｙｏｆｆｕｎｃｔｉｏｎｏｆｍａｇｎｅｓｉｕｍｉｎｉｒｏｎｏｘｉｄｅｃａｔａｌｙｓｔｓＴｈｅＰｒｏｊｅｃｔＳｕｐｐｏｒｔｅｄｂｙＮａｔｉｏｎａｌＣｌｉｍｂｉｎｇＰｌａｎＭａｎｕｓｃｒｉｐｔｒｅｃｅｉｖｅｄｄａｔｅ：１９９７...

关键词： M ssbauer effect Catalyst Magnesium Dehydrogenation Iron oxides

xF(or y)-Dependence of Nuclecir Absorption and Energy Loss Effects on J/ψ Production

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Communications in Theoretical physics 2009年第12期52卷 1049-1054页

作者： WANG Hong-Min,~(1,*) SUN Xian-Jing,~2.and ZHANG Ben-Ai~31 physics department, Academy of Armored Forces Engineering of PLA, Beijing 100072.{2.2.Institute of High Energy physics, Chinese Academy of Sciences, Beijing 100049,{2.3 Institute of Applied physics and Computation Mathematics, Beijing 100088,{2.

By means of the nuclear parton distribution studied only with lepton deep-inelastic scattering experimentaldata,the J/φ"normal nuclear absorption"and energy loss effects are studied in a Glauber formalism at HERA andRHIC *** that the absorption cross section σincreases with the charmonium-nucleon center of massenergy,the results reveal a significant dependence of the σon rapidity y at RHIC *** initial-state energyloss effect,which is found important only at HERA energies,is also considered,and its influence should be eliminatedwhen we studied the absorption effect at low collision ***,we also present the theoretical prediction forLHC.

关键词： x_F (or y)-dependence of absorption effect Glauber formalism energy loss

Modelling Accelerating Growth with Intermittent Processes in Evolving Networks

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Communications in Theoretical physics 2007年第12期48卷 1119-1122页

作者： YUAN Wu-Jie~(1,2.and LUO Xiao-Shu~1~1 College of physics and Electronic Engineering,Guangxi normal University,Guilin 541004,{2.~2.department of physics,Huaibei Coal Industry Teachers College,Huaibei 2.5000,{2. College of physics and Electronic Engineering Guangxi Normal University department of physics Huaibei Coal Industry Teachers College

In this paper,the acceleratingly growing network model with intermittent processes is *** thegrowing network,there exist both accelerating and intermittent *** network is grown from the number ofnodes mo and the number of links added with each new node is a nonlinearly increasing function m+aNβ（t）f（t）,whereN（t） is the number of nodes present at time t.f（t） is the periodic and bistable function with period T,whose values are1 and 0 indicating accelerating and intermittent processes,*** we denote the ratio r of acceleration timeto whole *** study the degree distribution p（k） of the model,focusing on the dependence of p（k） on the networkparameters τ,T,m,α,N,and β.It is found that there exists a phase transition point,kc such that if kc,then p（k）obeys a power-law distribution with exponent -γ1,while if k>kc,then p（k） exhibits a power-law distribution withexponent-γ2./sub>.Moreover,the exponents γ1 and γ2./sub> are independent of τ,T,m,a,and N,while they depend only onthe parameter β.More interesting,the phase transition point is described by kc=aNβ,which is equal to the value atwhich p（k） is maximum in GM model.

关键词： acceleratingly growing network intermittent process power-law distribution